There is no experience, I can only judge: Sexual and physical - definitely to law enforcement officers, here in my opinion everything is clear.
But what to do with the economic and moral ... it is naturally impossible to wait until the situation comes to the point of "incitement to suicide", but according to the law you cannot undermine ... perhaps as an option - try to open compromising evidence on the encroachment on family peace.
Not necessarily at UD, it is necessary to identify its "weak" points in the object and put pressure on this direction, someone is afraid of publicity of something at work more than death, someone is something in his personal life, you can think up more and more ... but find this "sore" topic and put pressure on it. Knowing that if his violence continues, he will get a situation that is more afraid of fire, he can refrain from previous actions ... yes, this is in some very literal sense blackmail, but not for profit for the sake of human life and family harmony - the cell of society.